---
product_id: 207378584
title: "Range Technology RA003B AFM/DFM Disabler-Blue"
brand: "range technology"
price: "$728"
currency: NZD
in_stock: true
reviews_count: 13
category: "Range Technology"
url: https://www.desertcart.nz/products/207378584-range-technology-ra003b-afm-dfm-disabler-blue
store_origin: NZ
region: New Zealand
---

# 100% full power retention Plug & play OBD-II connection No ECU reprogramming, factory safe Range Technology RA003B AFM/DFM Disabler-Blue

**Brand:** range technology
**Price:** $728
**Availability:** ✅ In Stock

## Summary

> ⚡ Stay in the driver’s seat of power—always on, always ready.

## Quick Answers

- **What is this?** Range Technology RA003B AFM/DFM Disabler-Blue by range technology
- **How much does it cost?** $728 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.nz](https://www.desertcart.nz/products/207378584-range-technology-ra003b-afm-dfm-disabler-blue)

## Best For

- range technology enthusiasts

## Why This Product

- Trusted range technology brand quality
- Free international shipping included
- Worldwide delivery with tracking
- 15-day hassle-free returns

## Key Features

- • **Broad Compatibility:** Designed for all GM vehicles with Active or Dynamic Fuel Management—cars, trucks, SUVs.
- • **Zero Footprint Tech:** Leaves no trace on your ECU; unplug anytime to revert to factory settings seamlessly.
- • **Effortless Plug & Play:** Instant activation via OBD-II port—no tools, no hassle, just pure power.
- • **Unleash Full Power Always:** Keeps your V6/V8 GM engine running at max cylinders 100% of the time for peak performance.
- • **Silence the Noise & Boost Performance:** Eliminates annoying engine pinging and delivers a noticeable power increase.

## Overview

The Range Technology RA003B AFM/DFM Disabler is a compact, plug-and-play device that disables the Active and Dynamic Fuel Management systems on GM V6 and V8 engines. It ensures your vehicle runs in full cylinder mode 100% of the time without reprogramming the ECU, providing consistent power and eliminating engine pinging. Compatible with all GM AFM/DFM vehicles, it leaves no permanent trace and can be unplugged to restore factory settings instantly.

## Description

The Range AFM/DFM Disabler allows your V6 or V8 GM vehicle to run in full cylinder mode at all times, preventing the Active or Dynamic Fuel Management system from dropping cylinders.;Range AFM/DFM Disabler keeps you in full power 100% of the time.; Simply plug into your onboard OBD-II port and it instantly begins working to eliminate the AFM system.; The power and control you need in any situation.; The Range AFM/DFM Disabler does not reprogram your factory ECU.; Leaves no trace. Unplug it to return to factory settings; Fits all V6 and V8 General Motors (GM) active or dynamic fuel management vehicles, includes cars, trucks, and SUVs.;

Review: Does what it's supposed to but not perfect. - 2018 gmc Sierra with eassist. If you want something that you plug in and basically forget about, this works like it's supposed to. However it's not perfect. It does turn off the auto stop and the DOD. When slowing down and coming to a stop, the transmission sometimes studders (best word i can describe it). If you don't mind a few extra seconds (without the Range device) put the transmission in L and select the highest gear available. This keeps the auto stop off and it stays in v8 all the time. The truck will drive normally.
Review: No more Pinging noise. Noticeable performance increase. - Awesome, plug and play. No more pinging noise and the performance increase is very noticeable. I hesitated to buy this, but it has been the best purchase I’ve made in a very long time.

## Features

- Leaves no trace. Unplug it to return to factory settings
- Range AFM/DFM Disabler keeps you in full power 100% of the time.
- Simply plug into your onboard OBD-II port and it instantly begins working to eliminate the AFM system.
- The power and control you need in any situation.

## Technical Specifications

| Specification | Value |
|---------------|-------|
| ASIN | B084X5V8RR |
| Automotive Fit Type | Vehicle Specific Fit |
| Brand | Range Technology |
| Customer Reviews | 4.5 4.5 out of 5 stars (2,162) |
| Date First Available | February 18, 2020 |
| Global Trade Identification Number | 00860001618600 |
| Is Discontinued By Manufacturer | No |
| Item Weight | 1.76 ounces |
| Item model number | RA003B |
| Manufacturer | Range |
| Manufacturer Part Number | RA003B |
| Model | RA003B |
| OEM Part Number | RA003B |
| Operating System | All |
| Power Source | Corded Electric |
| Product Dimensions | 4 x 4 x 1 inches |
| UPC | 860001618600 728505768859 |

## Product Details

- **Automotive Fit Type:** Vehicle Specific Fit
- **Brand:** Range Technology
- **Operating System:** All
- **Power Source:** Corded Electric
- **UPC:** 860001618600 728505768859

## Images

![Range Technology RA003B AFM/DFM Disabler-Blue - Image 1](https://m.media-amazon.com/images/I/719IP1jb2FL.jpg)
![Range Technology RA003B AFM/DFM Disabler-Blue - Image 2](https://m.media-amazon.com/images/I/71w1Z9P+pvL.jpg)

## Questions & Answers

**Q: willl this work for a 2012 chevrolet silverado lt 5.3? thanks**
A: It looks like a 2012 did come with Active Fuel Management system. 
The Range will work on it. 
If you have further questions Range is great at answering questions.

**Q: Will this work on a gmc 2019 pickup  denali 6.2 engine**
A: Yes, it should work fine.

Thank you.

**Q: Will this work on a 2019 suburban 5.3?**
A: I believe it should, works on a 2018 5.3 silverado.

**Q: Would this work on my 92 oldsmobile?**
A: I don’t believe Active Fuel Management was available in ‘92.
So, I would say no.
But check the product page on the Range website for compatibility just to be sure.

## Customer Reviews

### ⭐⭐⭐⭐⭐ Does what it's supposed to but not perfect.
*by G***Y on March 5, 2026*

2018 gmc Sierra with eassist. If you want something that you plug in and basically forget about, this works like it's supposed to. However it's not perfect. It does turn off the auto stop and the DOD. When slowing down and coming to a stop, the transmission sometimes studders (best word i can describe it). If you don't mind a few extra seconds (without the Range device) put the transmission in L and select the highest gear available. This keeps the auto stop off and it stays in v8 all the time. The truck will drive normally.

### ⭐⭐⭐⭐⭐ No more Pinging noise. Noticeable performance increase.
*by P***R on January 24, 2026*

Awesome, plug and play. No more pinging noise and the performance increase is very noticeable. I hesitated to buy this, but it has been the best purchase I’ve made in a very long time.

### ⭐⭐⭐⭐⭐ Keeps vehicle in V8 mode
*by J***T on January 20, 2026*

Easy to install. Appears to be working fine

## Frequently Bought Together

- Range Technology RA003B AFM/DFM Disabler-Blue
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*Product available on Desertcart New Zealand*
*Store origin: NZ*
*Last updated: 2026-03-10*